/-CI/ is the agentive morpheme in Turkish. It applies to nouns to form other nouns which mean ‘one who makes or sells NOUN’. It has eight allomorphs. Consonant harmony in voicing, and rounding harmony in both backness and rounding derive eight variations. • [cı] kolonya-cı [çı] bıçak-çı • [ci] kilim-ci [çi] saat-çi • [cu] baston-cu [çu] koltuk-çu • [cü] örgü-cü [çü] küp-çü